TWM562749U - Apparatus for driving screws - Google Patents
Apparatus for driving screws Download PDFInfo
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- TWM562749U TWM562749U TW106218588U TW106218588U TWM562749U TW M562749 U TWM562749 U TW M562749U TW 106218588 U TW106218588 U TW 106218588U TW 106218588 U TW106218588 U TW 106218588U TW M562749 U TWM562749 U TW M562749U
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Abstract
Description
本創作係有關一種鎖固裝置，特別是一種可設定參數並檢測工作之電動起子。 This creation relates to a locking device, in particular an electric screwdriver that can set parameters and detect work.
隨著工具電動化的趨勢，螺絲起子電動化所帶來的便利性已使得各家廠商無不著力於使電動螺絲起子效能更佳化。目前業界常見的電動螺絲起子所標榜的重點大多著重於如何透過時間長度來判斷是否已過度鎖固或鎖固不全，除了確保鎖固完整之外進而保護電動螺絲起子的馬達以及避免工具頭過度磨損。 With the trend of tool electrification, the convenience brought by the electric screwdriver has made it possible for various manufacturers to make the electric screwdriver better. At present, most of the common electric screwdrivers in the industry focus on how to judge whether they have been over-locked or locked in length, in addition to ensuring the locking integrity, and thus protecting the motor of the electric screwdriver and avoiding excessive wear of the tool head. .
目前常見的電動螺絲起子透過偵測作動時間的機制是從啟動時間開始計算，然而，經過馬達以及煞車機構，所回傳的時間訊號並不準確，嚴重一點的時間誤差高達50%。此誤差帶來的結果以及影響其一為過度鎖固，過度鎖固將施加過多力量在被鎖固物上進而導致上在被鎖固物上形成不當的應力，影響良率。另外，過度鎖固還可能會使螺絲滑牙，甚至是對電動螺絲起子本身帶來結構性的傷害(例如，馬達因過度運轉而損壞、或工具頭磨損率提高等)。 At present, the common mechanism of the electric screwdriver to detect the actuation time is calculated from the start time. However, after the motor and the brake mechanism, the time signal returned is not accurate, and the serious time error is as high as 50%. The result of this error and the impact of one of them is excessive locking. Excessive locking will exert excessive force on the object to be locked, which will cause improper stress on the object to be locked, which will affect the yield. In addition, excessive locking may cause the screw to slip, or even cause structural damage to the electric screwdriver itself (for example, the motor is damaged due to excessive operation, or the tool head wear rate is increased).
而時間誤差帶來的結果及影響其二為鎖固不全，鎖固不全將 導致被鎖固物的良率大幅降低或安全性降低，影響甚鉅。 The result of time error and its impact are incomplete locking, and the lock will be incomplete. As a result, the yield of the locked object is greatly reduced or the safety is lowered, and the impact is enormous.
因此，如何提供一個可確實判斷鎖固狀態且又可保障電動螺絲起子本身的使用壽命，實為業界急欲解決之課題。 Therefore, how to provide a reliable judgment of the locking state and the life of the electric screwdriver itself is an urgent problem for the industry.
本創作提供一種可有效判斷鎖固狀態且又可保障電動螺絲起子本身的使用壽命之電動鎖固裝置。 The present invention provides an electric locking device capable of effectively judging the locking state and ensuring the service life of the electric screwdriver itself.
因此，為達上述目的，本創作提供了一種鎖固裝置，用於鎖固一具有複數牙數之鎖固元件，包括：一起子頭；以及一起子本體，耦接至起子頭，包含：一馬達，耦接至起子頭，用以驅動起子頭旋轉，並受控於一控制單元；一圈數計算單元，耦接至馬達，用以偵測馬達之一轉速，並計算馬達運轉的一圈數，並將圈數回傳至控制單元；以及一開關，設置於起子本體，控制鎖固裝置之一電力；其中，控制單元依據牙數決定馬達需運轉之一預設圈數。 Therefore, in order to achieve the above object, the present invention provides a locking device for locking a locking component having a plurality of teeth, including: a sub-head; and a sub-body coupled to the driver head, comprising: a motor coupled to the driver head for driving the screwdriver head to rotate and controlled by a control unit; a number of calculation units coupled to the motor for detecting a rotation speed of the motor and calculating a running circle of the motor And counting the number of turns back to the control unit; and a switch disposed on the driver body to control one of the powers of the locking device; wherein the control unit determines a preset number of turns required for the motor to operate according to the number of teeth.
1‧‧‧起子頭 1‧‧‧ screwdriver head
2‧‧‧偵測器 2‧‧‧Detector
3‧‧‧馬達 3‧‧‧Motor
4‧‧‧開關 4‧‧‧ switch
5‧‧‧控制單元 5‧‧‧Control unit
6‧‧‧離合器 6‧‧‧Clutch
7‧‧‧監控單元 7‧‧‧Monitoring unit
8‧‧‧起子本體 8‧‧‧ screwdriver body
9‧‧‧圈數計算單元 9‧‧‧ lap calculation unit
10‧‧‧電動螺絲起子 10‧‧‧Electric screwdriver
S1~S9‧‧‧步驟 S1~S9‧‧‧Steps
第一圖所示為根據本創作一實施例之鎖固裝置架構示意圖。 The first figure shows a schematic diagram of the structure of the locking device according to an embodiment of the present invention.
第二圖所示為根據本創作一實施例之鎖固裝置中之控制單元與馬達之間作動示意圖。 The second figure shows a schematic diagram of the operation between the control unit and the motor in the locking device according to an embodiment of the present invention.
第三圖所示為根據本創作一實施例之鎖固裝置流程圖。 The third figure shows a flow chart of the locking device according to an embodiment of the present invention.
以下將對本創作的實施例給出詳細的說明。雖然本創作將結合實施例進行闡述，但應理解這並非意指將本創作限定於這些實施例。相反，本創作意在涵蓋由後附申請專利範圍所界定的本創作精神和範圍內所 定義的各種變化、修改和均等物。 A detailed description will be given below of the embodiment of the present creation. Although the present invention will be described in connection with the embodiments, it should be understood that this is not intended to limit the present invention to these embodiments. Instead, this creation is intended to cover the spirit and scope of this creation as defined by the scope of the appended patent application. Various changes, modifications, and equivalents defined.
此外，在以下對本創作的詳細描述中，為了提供針對本創作的完全的理解，提供了大量的具體細節。然而，於本技術領域中具有通常知識者將理解，沒有這些具體細節，本創作同樣可以實施。在另外的一些實例中，對於大家熟知的方法、程序、元件和電路未作詳細描述，以便於凸顯本創作之主旨。 In addition, in the following detailed description of the present invention, numerous specific details are provided in order to provide a complete understanding of the present invention. However, it will be understood by those of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as to highlight the substance of the present invention.
第一圖所示為根據本創作一實施例之鎖固裝置架構示意圖。在一實施例中，如第一圖所示，鎖固裝置(例如，電動螺絲起子10)包含一起子本體8，且起子本體8前端包含一起子頭1。鎖固裝置用於鎖固具有複數牙數之鎖固元件(例如，螺絲)。在一實施例中，起子本體8內部包含有一控制單元5(例如，可由一控制積體電路(IC)實現)、一馬達3，受控於控制單元5並用於驅動起子頭1旋轉、一偵測器2，耦接至馬達3，用以偵測馬達3之扭力以及離合器6之狀態，並將所偵測到之訊號回傳給控制單元5、以及一圈數計算單元9(示於第2圖)，耦接至馬達3，用於根據馬達3之轉速計算馬達3運轉的圈數，並將圈數回報至控制單元5。 The first figure shows a schematic diagram of the structure of the locking device according to an embodiment of the present invention. In one embodiment, as shown in the first figure, the locking device (eg, electric screwdriver 10) includes a sub-body 8 together, and the front end of the driver body 8 includes a sub-head 1 together. The locking device is used to lock a locking component (eg, a screw) having a plurality of teeth. In an embodiment, the driver body 8 internally includes a control unit 5 (for example, implemented by a control integrated circuit (IC)), a motor 3 controlled by the control unit 5 and used to drive the spinner head 1 to rotate, a detective The detector 2 is coupled to the motor 3 for detecting the torque of the motor 3 and the state of the clutch 6, and transmitting the detected signal back to the control unit 5 and the number of turns calculation unit 9 (shown in 2)), coupled to the motor 3, for calculating the number of turns of the motor 3 according to the rotational speed of the motor 3, and reporting the number of turns to the control unit 5.
在操作時，使用者透過起子本體8上之開關4使電動螺絲起子10上電，並透過同樣設置於起子本體8上之按鍵(圖中未示)使控制單元5及馬達3開始作動。請同時參照第二圖，第二圖所示為根據本創作一實施例之鎖固裝置中之控制單元5與馬達3之間作動示意圖。當控制單元5接收到來自按鍵之指令時，控制單元5將發出一速度控制信號speed_ctrl至馬達3以驅動馬達3依照速度控制信號speed_ctrl所指示之速度運轉。在一實施例中，電動螺絲起子10之馬達3係為伺服無刷馬達，在此實施例中，圈 數計算單元9利用伺服無刷馬達中的霍爾元件(Hall sensor)偵測馬達3的轉速，並回傳至控制單元5，進而可計算出馬達3所旋轉的圈數。 During operation, the user energizes the electric screwdriver 10 through the switch 4 on the driver body 8, and the control unit 5 and the motor 3 are activated by a button (not shown) also provided on the driver body 8. Please refer to the second figure at the same time. The second figure is a schematic diagram of the operation between the control unit 5 and the motor 3 in the locking device according to the embodiment of the present invention. When the control unit 5 receives an instruction from the button, the control unit 5 will issue a speed control signal speed_ctrl to the motor 3 to drive the motor 3 to operate at the speed indicated by the speed control signal speed_ctrl. In one embodiment, the motor 3 of the electric screwdriver 10 is a servo brushless motor, in this embodiment, a loop The number calculation unit 9 detects the rotation speed of the motor 3 by using a Hall sensor in the servo brushless motor, and returns it to the control unit 5, thereby calculating the number of revolutions of the motor 3.
在本實施例中，電動螺絲起子10可透過一學習過程，紀錄每次鎖固所需的馬達圈數，進而可透過控制單元5計算螺絲牙數與馬達圈數之間的比例關係，並將此比例儲存於控制單元內作為預設值。待設定完成後，控制單元5即可透過馬達3運轉圈數判斷鎖固是否完成。舉例說明，假設電動螺絲起子10是應用在生產線上，當欲鎖固螺絲變更時，控制單元5則可依據先前所儲存的牙數-馬達圈數比例，針對新的螺絲牙數計算出馬達3需運轉幾圈可使螺絲鎖固完全。於此，控制單元5可依據即時回傳的馬達圈數判斷鎖固是否完全，進而大幅提升生產良率。 In this embodiment, the electric screwdriver 10 can record the number of motor turns required for each locking through a learning process, and then the proportional relationship between the number of screws and the number of motor turns can be calculated through the control unit 5, and This ratio is stored in the control unit as a preset value. After the setting is completed, the control unit 5 can judge whether the locking is completed by the number of running of the motor 3. For example, suppose that the electric screwdriver 10 is applied to the production line. When the locking screw is to be changed, the control unit 5 can calculate the motor 3 for the new number of screws according to the previously stored number of teeth - the number of motor turns. It takes a few turns to lock the screws completely. In this case, the control unit 5 can determine whether the locking is complete according to the number of motor turns that are immediately returned, thereby greatly improving the production yield.
在本實施例中，電動螺絲起子10的偵測器2偵測馬達3運轉時之扭力以及離合器6之狀態。其中，離合器6係耦接馬達3以及起子頭1之間，並受控於控制單元5。倘若控制單元2接收到測器2所回傳之馬達3之扭力訊息後判斷馬達3之扭力不足以使螺絲鬆開，控制單元5可透過控制離合器6之狀態，調整馬達3之扭力，以使鎖固動作完全。在另一實施例中，控制單元5還可設定一扭力上限值，當偵測器2偵測到馬達3之扭力已達上限值，則控制開關4斷開，使電動螺絲起子10的電源斷電，以確保電動螺絲起子10的壽命。 In the present embodiment, the detector 2 of the electric screwdriver 10 detects the torque of the motor 3 and the state of the clutch 6. The clutch 6 is coupled between the motor 3 and the driver head 1 and is controlled by the control unit 5. If the control unit 2 receives the torque information of the motor 3 returned by the detector 2 and judges that the torque of the motor 3 is insufficient to loosen the screw, the control unit 5 can adjust the torque of the motor 3 by controlling the state of the clutch 6, so that the torque is adjusted. The locking action is complete. In another embodiment, the control unit 5 can also set a torque upper limit value. When the detector 2 detects that the torque of the motor 3 has reached the upper limit value, the control switch 4 is disconnected, so that the electric screwdriver 10 is The power supply is de-energized to ensure the life of the electric screwdriver 10.
在另一實施例中，控制單元5可依據螺絲狀況決定馬達3之轉速。一般傳統電動起子在鎖附過程中，馬達是全速運轉，此將對螺絲造成衝擊力過大，進而導致滑牙。於本創作一實施例中，控制單元5可依照鎖附圈數，得知全部行程後，設定部分行程馬達全速運轉，剩餘行程則使用慢 速鎖附，如此，可減少螺絲的衝擊力並提升鎖附的良率。例如，控制單元5可設定一馬達降速圈數值，指示當旋轉幾圈(例如，總圈數的80%)後，控制單元5可透過調整速度控制信號speed_ctrl使馬達3降速，以慢速將剩餘圈數(例如，總圈數的20%)鎖固完全，以降低電動螺絲起子10的衝擊力，進而避免鎖固螺絲時打滑。 In another embodiment, the control unit 5 can determine the rotational speed of the motor 3 depending on the condition of the screw. In the traditional locking process of the conventional electric screwdriver, the motor runs at full speed, which will cause excessive impact on the screw, which will lead to sliding teeth. In an embodiment of the present invention, the control unit 5 can know that after the full stroke, the partial stroke motor is operated at full speed according to the number of lock loops, and the remaining stroke is slow to use. Speed lock, so as to reduce the impact of the screw and improve the yield of the lock. For example, the control unit 5 can set a motor speed reduction circle value indicating that after rotating a few turns (for example, 80% of the total number of turns), the control unit 5 can slow down the motor 3 by adjusting the speed control signal speed_ctrl to a slow speed. The remaining number of turns (for example, 20% of the total number of turns) is completely locked to reduce the impact force of the electric screwdriver 10, thereby preventing slippage when the screw is locked.
在一實施例中，電動螺絲起子10還包含一通訊接口，設置於該起子本體8上。使用者可透過通訊接口與一監控單元7進行通訊，電動螺絲起子10可將鎖固資料(例如，牙數、馬達圈數、扭力、鎖固成功率、鎖固失敗警示等等)透過有線或無線方式傳遞至監控單元7輸出。相同的，監控單元7亦可透過有線或無線方式傳遞控制信號至電動螺絲起子10。例如，可傳遞控制信號以驅動電動螺絲起子10的開關4導通進而使電動螺絲起子上電、可重新設定扭力上限值至控制單元5以調整電源斷電的情境、可重新設定馬達降速的圈數、可重新設定螺絲牙數，以使控制單元5計算出對應的馬達運轉圈數等等。利用監控單元7遠距控制電動螺絲起子10可有助於生產線的維護及彈性，且從電動螺絲起子10端所蒐集到的資料可於後台端進行數據分析，有助於進行進一步的開發。在此實施例中，無線方式可以各種方式實現，例如，WIFI或藍芽等等，本創作並不以此為限。 In an embodiment, the electric screwdriver 10 further includes a communication interface disposed on the driver body 8. The user can communicate with a monitoring unit 7 through a communication interface, and the electric screwdriver 10 can lock the locking data (for example, the number of teeth, the number of motor turns, the torque, the locking success rate, the locking failure warning, etc.) through the wired or The wireless mode is passed to the output of the monitoring unit 7. Similarly, the monitoring unit 7 can also transmit control signals to the electric screwdriver 10 by wire or wirelessly. For example, the control signal can be transmitted to drive the switch 4 of the electric screwdriver 10 to be turned on to power on the electric screwdriver, the upper limit of the torque can be reset to the control unit 5 to adjust the power failure condition, and the motor can be reset. The number of turns, the number of screws can be reset, so that the control unit 5 calculates the corresponding number of motor running turns and the like. The remote control of the electric screwdriver 10 by the monitoring unit 7 can contribute to the maintenance and flexibility of the production line, and the data collected from the end of the electric screwdriver 10 can be analyzed at the background end, which is helpful for further development. In this embodiment, the wireless mode can be implemented in various manners, for example, WIFI or Bluetooth, etc., and the creation is not limited thereto.
請同時參考第三圖，第三圖所示為根據本創作一實施例之鎖固裝置流程圖。為方便說明，第三圖將結合第一圖及第二圖進行說明。在一實施例中，鎖固裝置可以為第一圖中所示之電動螺絲起子10。在操作中，使用者可以透過按壓電動螺絲起子10的開關4使電動螺絲起子10上電(步驟S1)。接著，進到步驟S2，判斷是否驅動電動螺絲起子10，若是，在步驟S3， 控制單元5發送速度控制信號speed_ctrl至馬達3，進而在步驟S4驅動馬達3依照速度控制信號speed_ctrl所指示之速度運轉。 Please refer to the third figure at the same time. The third figure shows a flow chart of the locking device according to an embodiment of the present invention. For convenience of explanation, the third figure will be described in conjunction with the first figure and the second figure. In an embodiment, the locking device can be the electric screwdriver 10 shown in the first figure. In operation, the user can power up the electric screwdriver 10 by pressing the switch 4 of the electric screwdriver 10 (step S1). Next, proceeding to step S2, it is determined whether or not the electric screwdriver 10 is driven, and if so, in step S3, The control unit 5 transmits the speed control signal speed_ctrl to the motor 3, and further drives the motor 3 to operate at the speed indicated by the speed control signal speed_ctrl in step S4.
接著，利用圈數計算單元9計算馬達運轉的圈數，並判斷圈數是否已達一設定值(步驟S5)，若圈數已達設定值，代表螺絲已鎖固完成，則進入步驟S7，控制單元5則控制馬達3停止運轉。若圈數未達設定值，則鎖固異常(步驟S6)，則控制單元控制馬達3反轉將螺絲退出，重新鎖固一次(步驟S8)，並且發出警示(步驟S9)，透過監控單元7通報異常。 Then, the number of turns of the motor operation is calculated by the number of turns calculation unit 9, and it is determined whether the number of turns has reached a set value (step S5). If the number of turns has reached the set value and the representative screw has been locked, the process proceeds to step S7. The control unit 5 then controls the motor 3 to stop operating. If the number of turns does not reach the set value, the lock is abnormal (step S6), the control unit controls the motor 3 to reverse the screw, re-locks once (step S8), and issues a warning (step S9), through the monitoring unit 7 The notification was abnormal.
綜合上述，本創作利用偵測馬達運轉圈數與螺絲牙數的比例關係，於控制單元中設定馬達需運轉的圈數，藉以立即判斷螺絲是否被正確鎖固，可避免因過度鎖固所導致之滑牙或鎖固不足所導致之螺絲浮上之狀況。本創作將有助於提升鎖固良率。 In summary, the present invention uses the ratio of the number of motor running cycles to the number of screws to set the number of turns the motor needs to run in the control unit, so as to immediately determine whether the screws are properly locked, thereby avoiding excessive locking. The condition of the screw floating due to the slippery teeth or insufficient locking. This creation will help increase the lock yield.
上文具體實施方式和附圖僅為本創作之常用實施例。顯然，在不脫離權利要求書所界定的本創作精神和發明範圍的前提下可以有各種增補、修改和替換。本領域技術人員應該理解，本創作在實際應用中可根據具體的環境和工作要求在不背離發明準則的前提下在形式、結構、佈局、比例、材料、元素、元件及其它方面有所變化。因此，在此披露之實施例僅用於說明而非限制，本創作之範圍由後附權利要求及其合法等同物界定，而不限於此前之描述。 The above detailed description and drawings are merely typical embodiments of the present invention. Obviously, there may be various additions, modifications and substitutions without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood by those skilled in the art that the present invention may be changed in form, structure, layout, ratio, material, element, component, and other aspects in accordance with the specific environmental and working requirements without departing from the invention. The presently disclosed embodiments are to be considered in all respects as illustrative and not restrict
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106218588U TWM562749U (en) | 2017-12-14 | 2017-12-14 | Apparatus for driving screws |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106218588U TWM562749U (en) | 2017-12-14 | 2017-12-14 | Apparatus for driving screws |
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| TWM562749U true TWM562749U (en) | 2018-07-01 |
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| TW106218588U TWM562749U (en) | 2017-12-14 | 2017-12-14 | Apparatus for driving screws |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI775452B (en) * | 2021-05-26 | 2022-08-21 | 王德煌 | Electric screwdriver device and control method thereof |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI775452B (en) * | 2021-05-26 | 2022-08-21 | 王德煌 | Electric screwdriver device and control method thereof |
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